60 lines
1.6 KiB
Bash
60 lines
1.6 KiB
Bash
#!/bin/sh
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# Bootstrap script for ollie-remote SSH deployment.
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# Checks for cached binary by hash, downloads if needed, then execs.
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main() {
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set -e
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#
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CACHE_DIR="${XDG_CACHE_HOME:-$HOME/.cache}/ollie/bin"
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CACHE_BIN="$CACHE_DIR/ollie-remote"
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CACHE_HASH="$CACHE_DIR/ollie-remote.hash"
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#
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if [ -x "$CACHE_BIN" ] && [ -f "$CACHE_HASH" ] && [ "$(cat "$CACHE_HASH")" = "@@HASH@@" ]; then
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echo "LoaderStart {\"need_download\":false}" >&2
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else
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# Find base64 decoder
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if command -v base64 >/dev/null 2>&1; then
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BASE64_CMD="base64 -d"
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if ! echo "dGVzdA==" | base64 -d >/dev/null 2>&1; then
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BASE64_CMD="base64 -D"
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fi
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elif command -v openssl >/dev/null 2>&1; then
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BASE64_CMD="openssl base64 -d"
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else
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echo "ERROR: no base64 decoder found" >&2
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exit 1
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fi
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#
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if ! command -v gunzip >/dev/null 2>&1 && ! command -v gzip >/dev/null 2>&1; then
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echo "ERROR: no gunzip found" >&2
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exit 1
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fi
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GUNZIP_CMD="gunzip"
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command -v gunzip >/dev/null 2>&1 || GUNZIP_CMD="gzip -d"
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#
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mkdir -p "$CACHE_DIR"
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echo "LoaderStart {\"need_download\":true}" >&2
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#
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# Read download size, then binary data
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while IFS= read -r line; do
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case "$line" in
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Download\ *) BINARY_LENGTH="${line#Download }"; break ;;
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esac
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done
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#
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CACHE_TMP="$CACHE_BIN.tmp.$$"
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if ! head -c "$BINARY_LENGTH" | $BASE64_CMD | $GUNZIP_CMD > "$CACHE_TMP"; then
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rm -f "$CACHE_TMP"
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echo "ERROR: binary transfer failed" >&2
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exit 1
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fi
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chmod +x "$CACHE_TMP"
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mv "$CACHE_TMP" "$CACHE_BIN"
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echo "@@HASH@@" > "$CACHE_HASH"
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echo "LoaderReady" >&2
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fi
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#
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exec "$CACHE_BIN" serve --cwd @@CWD@@
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exit 1
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}
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main "$@"; exit 2
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